Memcached Interview Questions and Answers
Ques 1. What is Memcached?
Memcached is a high-performance, distributed memory caching system used to speed up dynamic web applications by alleviating database load.
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Ques 2. Explain how Memcached works.
Memcached stores key-value pairs in memory to reduce the need for repeated database queries. It uses a simple and efficient hashing algorithm for distributed caching across multiple servers.
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Ques 3. What is the default port number for Memcached?
The default port for Memcached is 11211.
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Ques 4. How does Memcached handle data expiration?
Memcached uses a time-based expiration mechanism. Each key-value pair has a specified expiration time, and once the time is reached, the data is automatically evicted from the cache.
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Ques 5. What are the advantages of using Memcached?
Advantages of Memcached include improved performance, reduced database load, scalability, and ease of use as a distributed caching solution.
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